I have been loving how easy it is to convert emails into calendar entries on BlackBerry 10 but now there is another utility to get similar functionality on BlackBerry OS 5.0-7.1 Legacy devices. There have been a few utilities like this over the years but Jason pointed out to me that many of them are no longer available. Convert To simply turns your email, SMS, or phone log entries into a new calendar entry, task, or memo. That way it includes the email header and body for you to follow up in the future.
This is thankfully something BlackBerry built into BlackBerry 10 but if you are still on BlackBerry 5.0-7.1 check out Convert To for $1.99 in BlackBerry World.